The 2dF Galaxy Redshift Survey: the number and luminosity density of galaxies
- Creators
- Cross, Nicholas
- Driver, Simon P.
- Couch, Warrick
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Baugh, Carlton M.
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Bland-Hawthorn, Joss
- Bridges, Terry
- Cannon, Russell
- Cole, Shaun
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Colless, Matthew
- Collins, Chris
- Dalton, Gavin
- Deeley, Kathryn
- De Propris, Roberto
- Efstathiou, George
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Ellis, Richard S.
- Frenk, Carlos S.
- Glazebrook, Karl
- Jackson, Carole
- Lahav, Ofer
- Lewis, Ian
- Lumsden, Stuart
- Maddox, Steve
- Madgwick, Darren
- Moody, Stephen
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Norberg, Peder
- Peacock, John A.
- Peterson, Bruce A.
- Price, Ian
- Seaborne, Mark
- Sutherland, Will
- Tadros, Helen
- Taylor, Keith
Abstract
We present the bivariate brightness distribution (BBD) for the 2dF Galaxy Redshift Survey (2dFGRS) based on a preliminary subsample of 45 000 galaxies. The BBD is an extension of the galaxy luminosity function, incorporating surface brightness information. It allows the measurement of the local luminosity density, jʙ, and of the galaxy luminosity and surface brightness distributions, while accounting for surface brightness selection biases. The recovered 2dFGRS BBD shows a strong luminosity–surface brightness relation Mʙ∝(2.4±₀.₅¹.⁵)μₑ], providing a new constraint for galaxy formation models. In terms of the number density, we find that the peak of the galaxy population lies at Mʙ≥−16.0 mag. Within the well-defined selection limits (−24
Additional Information
© 2001 RAS. Accepted 2000 December 3. Received 2000 November 23; in original form 2000 May 18. The data shown here were obtained via the two-degree field facility on the 3.9-m Anglo-Australian Observatory. We thank all those involved in the smooth running and continued success of the 2dF and the AAO.Attached Files
Published - 324-4-825.pdf
Accepted Version - 0012165.pdf
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Additional details
- Eprint ID
- 104121
- Resolver ID
- CaltechAUTHORS:20200629-094519018
- Created
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2020-06-29Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field